The study focused on managing safety and health for teachers’ effective service delivery in public secondary schools in Rivers State. Two research questions and two null hypotheses guided the study. The study is a descriptive survey research design. The population of the study comprised 5,630 teachers from the 247 public secondary schools in Rivers State. The sample of the study was 840 respondents drawn from 84 public secondary schools selected for the study using stratified random sampling technique. Researchers’ -structured questionnaire was the instrument used for data collection. Mean scores and rank order statistics were used to provide answers to the research questions, while z-test was used to test the two null hypotheses at 0.05 level of significance. Findings include that Safety and Health Status of the teachers affect the school’s service delivery; hence appropriate measures should be put in place to enhance safety and health of teachers. Also, there was no significant difference between the mean scores of male and female teachers’ opinions on how safety and health of teachers affect school service delivery as well as the measures to be adopted to enhance the safety and health of the teachers. Recommendations include that government through the appropriate agencies should ensure full implementation of the National School Health Policy for all the educational institutions in Nigeria.